摘要
用集合的近似凸性来研究函数的预不变拟凸性.在较弱的假设下,获得了预不变拟凸函数的一些等价条件.
Prequabi- invex functions are studied by applying nearly convexity of sets. Under weaker assumPtions, some equivalent conditions for prequasi- invexity are derived.
出处
《吉林师范大学学报(自然科学版)》
2007年第4期16-19,共4页
Journal of Jilin Normal University:Natural Science Edition
基金
The Science and Technology Bureau of Chongqing Province(KJ051307,041302)
the Science Foundation of Yangtze Normal University
关键词
近似凸集
不变凸集
预不变拟凸函数
下半连续
Nearly convex sets,invex sets, prequasi- invex functions, lower semicontinuity